/**
 * Created by wxb on 2016/10/2.
 */
(function () {
  'use strict';

  angular.module('BlurAdmin')
    .service('qiniuToken', qiniuToken);

  /** @ngInject */
  function qiniuToken(teacherService, systemManageService, myPrefixService, osgPrefixService, osgTokenService) {

    function utf16to8(str) {
      var out, i, len, c;
      out = "";
      len = str.length;
      for (i = 0; i < len; i++) {
        c = str.charCodeAt(i);
        if ((c >= 0x0001) && (c <= 0x007F)) {
          out += str.charAt(i);
        } else if (c > 0x07FF) {
          out += String.fromCharCode(0xE0 | ((c >> 12) & 0x0F));
          out += String.fromCharCode(0x80 | ((c >> 6) & 0x3F));
          out += String.fromCharCode(0x80 | ((c >> 0) & 0x3F));
        } else {
          out += String.fromCharCode(0xC0 | ((c >> 6) & 0x1F));
          out += String.fromCharCode(0x80 | ((c >> 0) & 0x3F));
        }
      }
      return out;
    }

    function utf8to16(str) {
      var out, i, len, c;
      var char2, char3;
      out = "";
      len = str.length;
      i = 0;
      while (i < len) {
        c = str.charCodeAt(i++);
        switch (c >> 4) {
          case 0:
          case 1:
          case 2:
          case 3:
          case 4:
          case 5:
          case 6:
          case 7:
            // 0xxxxxxx
            out += str.charAt(i - 1);
            break;
          case 12:
          case 13:
            // 110x xxxx 10xx xxxx
            char2 = str.charCodeAt(i++);
            out += String.fromCharCode(((c & 0x1F) << 6) | (char2 & 0x3F));
            break;
          case 14:
            // 1110 xxxx 10xx xxxx 10xx xxxx
            char2 = str.charCodeAt(i++);
            char3 = str.charCodeAt(i++);
            out += String.fromCharCode(((c & 0x0F) << 12) | ((char2 & 0x3F) << 6) | ((char3 & 0x3F) << 0));
            break;
        }
      }
      return out;
    }

    /*
     * Interfaces:
     * b64 = base64encode(data);
     * data = base64decode(b64);
     */
    var base64EncodeChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_";
    var base64DecodeChars = new Array(-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63,
      52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
      15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1, -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
      41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1);

    function base64encode(str) {
      var out, i, len;
      var c1, c2, c3;
      len = str.length;
      i = 0;
      out = "";
      while (i < len) {
        c1 = str.charCodeAt(i++) & 0xff;
        if (i == len) {
          out += base64EncodeChars.charAt(c1 >> 2);
          out += base64EncodeChars.charAt((c1 & 0x3) << 4);
          out += "==";
          break;
        }
        c2 = str.charCodeAt(i++);
        if (i == len) {
          out += base64EncodeChars.charAt(c1 >> 2);
          out += base64EncodeChars.charAt(((c1 & 0x3) << 4) | ((c2 & 0xF0) >> 4));
          out += base64EncodeChars.charAt((c2 & 0xF) << 2);
          out += "=";
          break;
        }
        c3 = str.charCodeAt(i++);
        out += base64EncodeChars.charAt(c1 >> 2);
        out += base64EncodeChars.charAt(((c1 & 0x3) << 4) | ((c2 & 0xF0) >> 4));
        out += base64EncodeChars.charAt(((c2 & 0xF) << 2) | ((c3 & 0xC0) >> 6));
        out += base64EncodeChars.charAt(c3 & 0x3F);
      }
      return out;
    }

    function base64decode(str) {
      var c1, c2, c3, c4;
      var i, len, out;
      len = str.length;
      i = 0;
      out = "";
      while (i < len) {
        /* c1 */
        do {
          c1 = base64DecodeChars[str.charCodeAt(i++) & 0xff];
        } while (i < len && c1 == -1);
        if (c1 == -1) break;
        /* c2 */
        do {
          c2 = base64DecodeChars[str.charCodeAt(i++) & 0xff];
        } while (i < len && c2 == -1);
        if (c2 == -1) break;
        out += String.fromCharCode((c1 << 2) | ((c2 & 0x30) >> 4));
        /* c3 */
        do {
          c3 = str.charCodeAt(i++) & 0xff;
          if (c3 == 61) return out;
          c3 = base64DecodeChars[c3];
        } while (i < len && c3 == -1);
        if (c3 == -1) break;
        out += String.fromCharCode(((c2 & 0XF) << 4) | ((c3 & 0x3C) >> 2));
        /* c4 */
        do {
          c4 = str.charCodeAt(i++) & 0xff;
          if (c4 == 61) return out;
          c4 = base64DecodeChars[c4];
        } while (i < len && c4 == -1);
        if (c4 == -1) break;
        out += String.fromCharCode(((c3 & 0x03) << 6) | c4);
      }
      return out;
    }

    var safe64 = function (base64) {
      base64 = base64.replace(/\+/g, "-");
      base64 = base64.replace(/\//g, "_");
      return base64;
    };

    var genToken = function(accessKey, secretKey, putPolicy) {
      var put_policy = JSON.stringify(putPolicy);

      var encoded = base64encode(utf16to8(put_policy));

      var hash = CryptoJS.HmacSHA1(encoded, secretKey);
      var encoded_signed = hash.toString(CryptoJS.enc.Base64);

      var upload_token = accessKey + ":" + safe64(encoded_signed) + ":" + encoded;

      return upload_token;
    };

    this.getToken = function () {

      var policy = new Object();

      var accessKey = 'jx4Iqo5wFjT8AiPIv6yF8P8C-LM9DRYVadO6p3KZ';
      var secretKey = 'bbruMflOkHUkmY6LRDRBAd6RHCgO_2zjTH1NzJt4';
      var bucketName = 'image-wxb';

      policy.scope = bucketName;
      
      var deadline = Math.round(new Date().getTime() / 1000) + 1 * 3600;
      
      policy.deadline = deadline;
      
      return genToken(accessKey, secretKey, policy);

    };
    
    this.imgBaseUrl = function () {
      // return 'http://image-wxb.qiniudn.com/'
      // return 'http://imagetest.i.haierzhongyou.com/'
      return myPrefixService.imagePrefix()
    };
    this.productBaseUrl = function () {
      // return 'http://cooperation.i.haierzhongyou.com/'
      return myPrefixService.cooperationPrefix()
    };
    this.videoBaseUrl = function () {
      // return 'http://videotest.i.haierzhongyou.com/'
      return myPrefixService.videoPrefix()
    };
    this.osgImgBaseUrl = function () {
      return osgPrefixService.imagePrefix()
    };
    this.osgVideoBaseUrl = function () {
      return osgPrefixService.videoPrefix()
    };

    this.apkBaseUrl = function () {
      return 'http://download.i.haierzhongyou.com/'
    };
    this.imgToken = function () {
      return teacherService.imageToken()
    };
    this.productToken = function () {
      return systemManageService.productToken()
    };
    this.videoToken = function () {
      return teacherService.videoToken()
    };
    this.osgVideoToken = function () {
      return osgTokenService.videoToken()
    };
    this.apkToken = function () {
      return systemManageService.apkToken()
    };
    this.cooperationToken = function () {
      return teacherService.cooperationToken()
    }
    
  }
})();